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Why do most fields (class members) in Android tutorial start with `m`?
...llow Field Naming Conventions
Non-public, non-static field names
start with m.
Static field names start with s.
Other fields start with a lower case letter.
Public static final fields (constants) are ALL_CAPS_WITH_UNDERSCORES.
Note that the linked style guide is for code to be c...
Open a file from Cygwin
...
You can also use the cygwin utility:
cygstart <your file>
To make things OSX-like add the following to your bashrc
alias open='cygstart'
Don't forget to check out the man page for cygstart.
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Extract substring in Bash
...
tmp=${a#*_} # remove prefix ending in "_"
b=${tmp%_*} # remove suffix starting with "_"
If there are other underscores, it's probably feasible anyway, albeit more tricky. If anyone knows how to perform both expansions in a single expression, I'd like to know too.
Both solutions presented ar...
How to get the part of a file after the first line that matches a regular expression?
...ined. So the first expression (if(found) print) will not print anything to start off with.
After the printing is done we check if the this is the starter-line (that should not be included).
This will print all lines after the TERMINATE-line.
Generalization:
You have a file with start- and end...
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
...deDecodeError: 'utf8' codec can't decode byte 0x96 in position 19: invalid start byte
In this case, the encoding is windows-1252 so you have to do:
>>> 'my weird character \x96'.decode('windows-1252')
u'my weird character \u2013'
Now that you have Unicode, you can safely encode into ut...
How to reset sequence in postgres and fill id column with new data?
...n't want to retain the ordering of ids, then you can
ALTER SEQUENCE seq RESTART WITH 1;
UPDATE t SET idcolumn=nextval('seq');
I doubt there's an easy way to do that in the order of your choice without recreating the whole table.
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How to use git bisect?
...by half.
You'll use the command like this:
$ git stash save
$ git bisect start
$ git bisect bad
$ git bisect good 0
Bisecting: 2 revisions left to test after this (roughly 2 steps)
[< ... sha ... >] 3
After this command, git will checkout a commit. In our case, it'll be commit 3. You need ...
Frontend tool to manage H2 database [closed]
...rowse port 8082:
$ java -cp /opt/h2/bin/h2.jar org.h2.tools.Server -help
Starts the H2 Console (web-) server, TCP, and PG server.
Usage: java org.h2.tools.Server
When running without options, -tcp, -web, -browser and -pg are started.
Options are case sensitive. Supported options are:
[-help] or [...
Pan & Zoom Image
...enderTransformOrigin on the image is then set to 0.5,0.5 so the image will start zooming on the center of the image. The RenderTransform is also set to a TransformGroup containing a ScaleTransform and a TranslateTransform.
I then handled the MouseWheel event on the image to implement zooming
priva...
Polymorphism with gson
...json string with Gson.
I receive an array of commands. The command can be start, stop , some other type of command. Naturally I have polymorphism, and start/stop command inherit from command.
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